第一种方式是将常用的命名空间都记录下来，需要时复制黏贴导入，但现在此种方式不建议。
1.util标签用来配置集合、常量等的
xmlns:util="http://www.springframework.org/schema/util"
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
2.jee标签用来处理javaee标准相关的问题，例如查询一个jndi对象以及定义一个ejb的引用等
xmlns:jee="http://www.springframework.org/schema/jee"
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
3.lang用来将那些已经被定义在一些动态语言（例如Jruby和Groovy）中的对象作为beans中的对象存放到spring容器中
xmlns:lang="http://www.springframework.org/schema/lang"
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
4.jms :
xmlns:jms="http://www.springframework.org/schema/jms"
http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms.xsd
5.aop :
xmlns:aop="http://www.springframework.org/schema/aop"
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
6.context
xmlns:context="http://www.springframework.org/schema/context"
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
7.jdbc
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
8.cache
xmlns:jdbc="http://www.springframework.org/schema/cache"
http://www.springframework.org/schema/cache http://www.springframework.org/schema/jdbc/spring-cache.xsd
9.tx (transaction事务管理) 使用时建议配合aop:
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
10.p命名空间，进行简化bean的创建，属性的注入书写方式
xmlns:p="http://www.springframework.org/schema/p"
11.mybatis-spring
xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
12.mvc
xmlns:mvc=”http://www.springframework.org/schema/mvc”
xsi:schemaLocation=”http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd”